Table 2 Multivariable analysis comparing vaccinated and unvaccinated pregnant women screened in Gauteng and Western Cape, 2015-2018
Characteristics | OR (95% CI) | P-value | Adjusted OR (95% CI) | P-value |
|---|---|---|---|---|
Number screened: | ||||
Gauteng | Reference | Reference | Reference | Reference |
Western Cape | 2.8 (2.7–2.9) | < 0.001 | 3.7 (3.5–3.8) | < 0.001 |
Age (years) | – | 0.015 | – | – |
Age group (years): | ||||
< 18 | 1.2 (1.0–1.3) | 0.019 | 1.0 (0.9–1.2) | 0.987 |
18-24 | Reference | Reference | Reference | Reference |
25-29 | 0.9 (0.9–1.0) | < 0.001 | 0.9 (0.9–1.0) | 0.053 |
30-34 | 0.9 (0.9–1.0) | 0.015 | 1.0 (0.9–1.0) | 0.554 |
35+ | 0.9 (0.8–0.9) | < 0.001 | 0.9 (0.8–0.9) | < 0.001 |
HIV status: | ||||
Infected | 1.0 (0.9–1.0) | 0.509 | – | – |
Gestational age at 1st screening during campaign (weeks) | – | < 0.001 | – | – |
Trimester distribution at 1st screening during campaign (weeks) | ||||
Trimester 1: < 13 | 1.2 (1.1–1.3) | < 0.001 | 1.3 (1.2–1.5) | < 0.001 |
Trimester 2: 14-27 | 1.2 (1.12–1.3) | < 0.001 | 1.5 (1.4–1.5) | < 0.001 |
Trimester 3: 28-42 | Reference | Reference | Reference | Reference |